Improvement in combined quarter-connections and parallel motions for engines



2 Sheets--Sheet l. l. L. L0 R E-TZ. Combined lluarter- Connections and Parallel Motions ines.

for Eng Patented Nov. 25,1873.

2 Sheets s heet 2. A. l. L. LURETZ'.

Combined Quarter-Connections and Parallel Motions for Engines.

No. 144,852. Patented Nov.25,l873.

Wl'l'NESSE I iNVENTOK UNITED STATES PATENT QFFIGE.

ARTHUR J. L. LORETZ, OF BROOKLYN, NEW YORK, ASSIGNOR OT? ONE- THDiD HIS RIGHT TO NORMAN HUBBARD, OF SAME PLACE.

IMPROVEMENT IN COMBINED QUARTER-CONNECTIONS AND PARALLEL MOTIONS FOR ENGINES.

Specification forming part of Letters Patent No. 144,852, dated November 25, 1873; application filed October 1, 1872.

To all whom it may concern:

Be it known that I, ARTHUR. J. L. LORETZ,-- of Brooklyn, in the county of Kings and State of New York, have invented a Quarter-Gonnection and Parallel Motion Combined, of which the following is a specification My invention consists of an arrangement for connecting a double vertical cylinder-beam engine on the quarter for the purpose of obtaining four separate vibrating points, or a continuous motion from their beamssuch as would be required for four lifting-pumps,for instanceto keep up a continuous stream. Supposing each center 1, 2, 3, and 4. of the beams G and D, Plate I, were to have a pump attached to it, asin my pumping-engine case filed June 7, l872or, when the beam-center l on beam 0 of cylinder A is at its highest point, and 2 at its lowest, both apparently in their slowest point of movement, in consequence of the connection of the cylinder A being on the deadcenter-the centers 3 and 4c of the beam D are e at their point of greatest velocity, one going up and the other down,in consequence of the connections of cylinder B, which vibrates thebeam D, being on the quarter or at half stroke, while those of cylinder A, as above described, are on the center; and when the connections of cylinder B arrive at the end of the stroke those of cylinder A will be on the quarter or at halfstroke, precisely in the same position as were those of cylinder B previously.

Plate 1 represents a side elevation and plan of the aforementioned arrangement, and Plate 2 a side elevation.

A and B are the steam-cylinders, placed opposite each other. C and D are their respective beams, having centers 1, 2, 3, and 4for the purpose hereinbefore set forth. The beam of cylinder A is made of two beams, O, as repreented in the side elevation, Plate 2, keyed ast to the main-beam center E, which pin E vibrates in journals of the upright frame F, which is bolted to the main bed pieces G, to which both cylinders A and B are bolted. The beam D of cylinder B vibrates loose on the main center-pin E, having a wide boss, equal in width to the two center bearings of E, and vibrates between the twobeams O of cylinderA.

All the connections connected to the beam and to the crank-shaft are alike for both cylinders.

The piston-rods P are connected to the cross heads 0, Plate 2, said cross-heads being connected to links N, the upper parts of which links N are attached to the end center-pins M, and the lower parts to the vibrating cranks L (Plates 1 and2) of the rock-shafts K, said shafts Kvibrating on journals in the main bed-plates G. In the center of shafts K are attached cranks J, so located with regard to the main crank I of the crank-shaft H, as to be on the quarter, Plate 1, the two cranks J being connected to the one crank I by two connectingrods, R for cylinder A, and R for cylinder B. The links N, besides forming part of the regular quarter connection, act, also, as parallel rods for the piston-rods of their respective cylinders.

By connecting the cross-head at a certain point of the links N-as where the cross-head is shown connectedthe piston-rod will be kept in a true vertical course; for, as the beam vibrates in the one direction, the rockshaft crank L vibrates in the opposite, thus keeping the cross-head of the piston-rod P always in a perfect vertical line, no matter at what point of the stroke.

Having described my invention, whatI claim as new, and desire to secure by Letters Patent is- 1. The arrangement of the cylinders A and B withtheir beamsO and D, the side connections N, rock-shaftKwith its cranksL and J working in bearings in thesame bed-plates G to which the cylinders A and B are bolted, and connected on the quarter, through rods R R to main crank I of the crankshaft H placed in the center between the cylinders A and B, substantially as and for the purpose hereinbefore set forth.

- 2. The combination of the cross-head O, piston-rod P, connecting-rods N, beams O or D, and crank L, substantially as and for the purposes described.

ARTHUR J. L. LORETZ.

Witnesses WM. BURDON, J. A. OOLEY. 

